| 摘要 |
A fuel injection system which serves to adapt the fuel-air mixture accurately over a wide range to operating conditions of the internal combustion engine. The fuel injection system includes metering valves, with each of which a regulating valve is associated, the movable valve element of which can be acted upon on one side by the fuel pressure downstream of the particular metering valve and on the other side by the pressure in a differential pressure control line, which is defined on one end by a first electrofluidic converter of the nozzle/baffle type and on the other end by a first throttle. The first electrofluidic converter is triggerable in accordance with operating characteristics of the engine and determines the pressure in the differential pressure control line and thus, via the regulating valves, the differential pressure at the metering valves. The control slide of the metering valves protrudes with one end face into a pressure chamber, which communicates with a restoring force pressure control line in which the pressure, and thus the restoring force exerted upon the control slide, is variable by means of a second electrofluidic converter, which communicates via an uncoupling throttle with the fuel supply line. |
